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big-bore
The Beck tunnel boring machine (alternately Big Becky) was the largest tunnel boring machine in the world, when it was operated by Ontario Hydro, from 2006 to 2011. Hydro used it to bore a deep replacement tunnel to supply water from the upper Niagara River 10.2 kilometres (6.3 mi) to the Sir Adam Beck Hydroelectric Plant. The tunnel it bored was 14.4 metres (47 ft) in diameter.
The tunnel was delayed when Beck encountered a bed of loose material, unsuitable for boring, that required a detour.According to Ontario Power Generation the TBM itself weighed 2000 tons.
However, when its task was complete, Western Mechanical, the firm that removed Beck, described it weighing 7000 tons.
View More On Wikipedia.org
The tunnel was delayed when Beck encountered a bed of loose material, unsuitable for boring, that required a detour.According to Ontario Power Generation the TBM itself weighed 2000 tons.
However, when its task was complete, Western Mechanical, the firm that removed Beck, described it weighing 7000 tons.
View More On Wikipedia.org
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"Tactical" Big-Bore Lever Gun - Marlin 1895 GBL 45-70
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- For Sale
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Hey guys, looking to sell or trade my Marlin 1895 GBL. It is chambered in .45-70 and has been tastefully upgraded. Ive put 40 rounds through it, and it functions beautifully. Aftermarket parts are as listed --------------------------------------- Midwest Industries M-Lok rail Midwest...- Classified Ad
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Winchester Model 94 Big-Bore (Unfired)
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- For Sale
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Winchester Model 94; Big-Bore XTR, .375 Winchester, 19” Barrel, Unfired, Soft Case, $1000.00 (Comes with a few store bought rounds and new reloading dies)- Classified Ad
- Rifle Classifieds
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Big-bore, threaded lever-action?
So, this one has been kicking around the noggin for a while. There is a large-bore silencer in the works, so the idea of a .45-70 levergun, or perhaps .454 Casull, that is silenced strikes me as quite corking. I'm planning on heading up to Eugene early this coming week for some shenanigans so...- Discussion Thread
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Ruger Gunsite Scout, .450 Bushmaster
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- For Sale
- $800
- Myrtle Creek
- Oregon
For sale is a very lightly used, Ruger Gunsite Scout in .450 Bushmaster. Only 20-rounds fired by the original owner. The sale includes: The aforementioned rifle. The included OEM magazine. Original box and all accessories (e.g., scope rings, manual, thread protector, stock inserts, et al.)...- Classified Ad
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Big-bore AR Upper?
From time to time I get the idea to add a big-bore AR upper to the mix. Something, say, .458 SOCOM or .50 Beowulf. As it will be mated to registered SBR lower, length can be anything. Recommendations on this one? Other calibers to consider other than the aforementioned? Any to avoid? Thanks.- Discussion Thread
- Semi-Automatic Rifles
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